Hand Portable Electronic Device Having a Plurality of Modes of Operation

1. A hand portable electronic device having a plurality of modes of operation including a communications mode, an application mode, and a basic mode, and having a user input part and a display part comprising a display, wherein the user input part is movable relative to the display part between a first position in which a first portion of the user input part, comprising a first user input, is accessible and a second portion of the user input part, comprising a second user input, is not accessible while it is located behind the display part and a second position in which the second portion of user input part, comprising the second user input, is accessible and the first portion of the user input part, comprising the first user input, is not accessible while it is located behind the display part and wherein movement of the user input part to the first position causes the device to operate in the communications mode and movement of the user input part to the second position causes the device to operate in the application mode, wherein the user input part is configured to move in substantially a same plane between the first position and the second position wherein the device is configured to operate in the basic mode when the first user input and the second user input are not accessible, and wherein the basic mode comprises at least one of a basic communication function and a basic camera function.

2. A hand portable electronic device as claimed in claim 1 , wherein the first user input is orientated on the device for use by a user when the device is in a first orientation and the second input is orientated on the device for use by a user when the device in a second orientation.

3. A hand portable electronic device as claimed in claim 2 wherein the first and second orientations are substantially perpendicular to each other.

4. A hand portable electronic device as claimed in claim 1 wherein the first user input includes a first keypad and the second user input comprises a second, different, keypad.

5. A hand portable electronic device as claimed in claim 1 wherein the user input part is movable relative to the display part into a third position in which the second portion of user input part, comprising the second user input, is not accessible because it is located behind the display part and the first portion of the user input part, comprising the first user input, is not accessible because it is located behind the display part and wherein when the user input part is in the third position the device is in the basic mode.

6. A hand portable electronic device as claimed in claim 5 wherein in the basic mode the device can function as both a communications device and a camera.

7. A hand portable electronic device as claimed in claim 5 wherein in the basic mode, the range of functions available is reduced relative to the ranges available in the first and second modes.

8. A hand portable electronic device as claimed in claim 1 , wherein the user input part does not comprise a display.

9. A hand portable electronic device as claimed in claim 1 , wherein the display part comprises a third user input associated with the display.

10. A hand portable electronic device as claimed in claim 9 , wherein the third user input comprises a plurality of keys, the function of which is indicated by labels displayed on the display with an orientation wherein the orientation of the labels is different between the application mode and the communication mode.

11. A hand portable electronic device as claimed in claim 1 wherein the user input part is slidable under the display part, wherein the second user input is spaced from a camera portion of the device, and wherein the second user input comprises at least two user input members.

12. A hand portable electronic device as claimed in claim 1 wherein the device is operable in the application mode as a camera.

13. A hand portable electronic device as claimed in claim 1 wherein the first user input are for controlling the device in the communications mode.

14. A hand portable electronic device as claimed in claim 1 wherein the second user input are for controlling the application provided in the application mode.

15. A hand portable electronic device as claimed in claim 1 wherein the orientation of images created on the display is dependent upon the relative positions of the user input part and the display part of the device, so that the device is usable in different orientations in respective modes of operation.

16. A hand portable electronic device as claimed in claim 1 wherein the display is substantially rectangular.

17. A hand portable electronic device as claimed in claim 15 wherein when the user input part is in the first position display images are created as a portrait display.

18. A hand portable electronic device as claimed in claim 15 wherein when the user input part is in the second position display images are created as a landscape display.

19. A hand portable electronic device as claimed in claim 1 wherein the user input part is slidable relative to the display part, and wherein the second user input is configured to be depressed by a user of the device.

20. A hand portable electronic device as claimed in claim 1 wherein the device comprises a guide rail, a raised cam portion, and a sensor, wherein the guide rail is between the user input pat and the display part, wherein the raised cam portion is spaced from the guide rail, wherein a length, of the raised cam portion extends substantially perpendicular to the guide rail, and wherein the sensor detects the relative positions of the user input part and the display part.